Clamp.



J. H. CRAIG.

CLAMP.

APPLIUATION FILED MAR. 21, 1914- Patented Oct. 6, 19%

awwwtoz Witwaooeo THE NORRIS PETERS 60., PHOTO-LITHQ. WASHINGTON. D 4.

JAMES HARRY CRAIG, or nnvrnn, PENNSYLVANIA.

CLAMP.

Specification of Letters Patent. 1

Patented Oct. 6, 1914.

Application filed March 21, 1914. Serial No. 826,301.

To all whom it may concern:

Be it known that 1, JAMES HARRY CRAIG, a citizen of the United States,residing at Rimer, in the county of Armstrong and State of Pennsylvania,have invented certain new and useful Improvements in Clamps, of whichthe following is a specification, reference being had to theaccompanying drawings.

This invention relates to new and useful improvements in clamps and moreparticu* larly to what is known as a tong clamp, the main object of theinvention being to provide an adjustable clamp which is adapted forapplication to the handles of any well known form of tongs such as icetongs, blacksmiths tongs and the like so as to securely clamp the tongsto any object to which they might be applied, said clamp being readilyadjusted to adapt the same to various sized objects.

Another object of the invention is the provision of a clamp of the abovecharacter which will possess advantages in points of efliciency anddurability, is inexpensive to manufacture and at the same time is simplein construction and operation.

lVith the above and other objects in view, the invention consists in thenovel features of construction and the combination and arrangement ofparts to be hereinafter more fully described, pointed out in the claimand shown in the accompanying drawings, in which Figure l is a frontelevation of a clamp constructed in accordance with my invention; Fig. 2is a side elevation, parts being broken away and in section; Fig. 3 is atransverse sectional view of the shank taken on the line 33 of Fig. 2.

In the construction of my improved clamp, I provide a shank 1 having anannular enlarged head 2 formed at one end and an offset hook member 3formed at the other end. It will be noticed that the shank l is providedadjacent the hook member 3 with an offset portion, indicated at 4, sothat the hook 3 is disposed in a different plane from the shank 1. Theshank 1 and integral parts thereof are preferably formed of tool steel,but it will be understood that any suitable form of material may be usedwithout departing from the spirit of the invention.

Slidably mounted upon'the shank 1 is a yoke 5, the ends of which areenlarged, as shown at 6, and arranged in spaced relation upon one sideof the shank, said shank being preferably substantially fiat, asindicatedin cross section so that the yoke 5 will not rotate upon thesame. A plate 7 is provided having pivot holes 8 formed therein, saidplate being adapted to be disposed between the enlarged ends 6 of theyoke 5 and a pivot pin 9 is arranged within the perforated portions 6and the openings 8 of the plate 7 to pivotally mount the platetherebetween. In placing the plate in position, it is preferred to havethe lower longitudinal edge 10 of the plate arranged adjacent one of thefaces of the shank 1 so that the corner portions of the plate will limitthe pivotal movement of the same.

The outer end of the plate 7 is curved, as shown at 11, to provide asubstantial hook member adapted to be arranged in opposed relation withthe hook 3 so that the handles of a blacksmiths tong may be readilygrasped and retained in an effective position.

From this description taken in connection with the accompanyingdrawings, it

will be readily apparent that I have provided a simple and durableadjustable clamp whereby the handles of a blacksmiths or ice tong may bereadily clamped in their effective positions and the hook member 11 maybe quickly and readily adjusted upon the shank 1 to adapt the same tovarious sized objects. It will be noted that by having the longitudinaledge 10 arranged adj acent one of the fiat faces of the shank 1, thecorner portions of the plate 7 will limit the pivotal movement of theplate so that after the same has been once placed in its effectiveposition, the corner portion engaging the shank, will limit the pivotalmovement of the hook 11 and also retain the yoke 5 against slidingmovement upon the shank. My device as herein shown and described isextremely simple in construction and can be manufactured at acomparatively low cost.

l/Vhile I have shown and described the preferred form of my invention,it will be obvious that various changes in the details of constructionand in the proportions may be resorted to for successfully carrying myinvention into practice Without sacrificing any of the novel features ordeparting from the scope o1 the appended claim.

What 1 claim is 1- A device of the class described including asubstantially flat shank, an oiiset hook member formed at one end, ayoke slidabl y' mounted upon the shank, enlarged ends formed on saidyoke and arranged in spaced relation, a plate mounted for pivotalmovement between the yoke, a hook formed at the outer end of said plateand arranged in opposed relation with the hook on the shank and theinner longitudinal edge of the plate being disposed adjacent one of theflat i'aces oi the shank whereby the corners of the plate will engagethe shank and limit the pivotal movement of the plate and the slidingincrement of he yoke when in effective position. In testimony whereof Ihereunto aflix my signature in the presence oi two Witnesses. J. HARRYCRAIG. Witnesses J. JV. PAINE, WV. E. PAINE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents,

Viashington, 1]. G.

